Union.



No. 810,190. PATENTED JAN. 16, 1906.

W. COOPER.

UNION.

APPLICATION FILED MAR.10, 1905.

ATTORNEY.

WILLIAM COOPER, OF lROVlDlCNVlfi, RHODE l lLi'ltlli Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed March 10,1905. Serial No. 249,383.

To all whom, 176 may concern:

Be it known that I, \VILLIAM (com-1n, a I

The female pipe .melnlmr B is interiorly threaded I) and. has an external annular shoulder 1) upon its side at the inner end.

1 The inner pipe face or extremity has anannular tapering socket or groove 1), in which reg which the following is a specification. refer- I once being had therein to the accompanying drawings.

My invention relates to unions or couplings for pipes of all kinds, and has for its objects the ends commonly sought in devices of such a character, but more particularly to secure a perfectly tight connection that will dispense with packing of any kind, to provide a compensation for wear, to minimize dangerous results from accidental abrasion of the coupling-seat by providing a double holding face, bearing, or seat, to provide an accurate and easy means for guiding and centering the parts to be united, and to afford a clear and unobstructed passage for the passage of li 1 nids, lluids, or gases.

the accompanying drawings, wbereinunion coinple V; Fig. 2, a vertical central section of the same; Fig. 3, a plan View; Fig. 4-, a side elevation of the male member disengaged, and Fig. 5 a similar elevation of the disengaged female member.

Like reference characters indicate similar parts throughout the views.

In the drawings, A and B are the male and female pipe members, respectively, and C the coupling nut or collar. The parts may be constructed from malleable iron or other convenient material.

In detail the pipe member A is provided outer extremity. Its opposite exterior portion is of preferably increased diameter and has threads (0 upon its periphery. Its inner face or extremity (19 is provided .with an annular tapering or beveled rib a", shaped in crosssection like a truncated letter V.

isters or is scaled the annular rib (L The tapering groore 0 near the point 'where its sides if extended would converge is extended or deepened to form an annular orifice l).

The nut (l is provided with threads 6, which engage the threads (1 of the male member and has an inwardlyprojeeting flange 0, which engages the shoulder I) of the female number.

will be noted that the double taco ithe i'apcring socket a ll'ordsa double protection in against the flange of the collar.

To the above ends my invention consists in i the novel construction and combination of parts hereinafter set forth, and illustrated in l llaying de. -ribed my invention, claim as new is- A union for pipes comprising an exteriorlywhat I i threaded male member having an annular, Figure 1 is a side elevation of my norel i tapered rib on its inner end, a female member havin an annular, ta )ered socket in its inner end and the aunula r orifice l), of even width throughout, extending beyond the bottom of the tapered socket and adapted to permit the metal of the rib to flow, and also having an vexterior shoulder on the outer wall of said socket, and a collar interiorly threaded to engage the thread of the male member and hav- .ing an inwardly-extending flange arranged to engage the exterior shoulder of the female member.

in testimony whereof I have alfixed my signature in presence of two witnesses. with interior threads a for a distance from its WILLIAM COOPER;

Witnesses:

llURA'IIO it. Bmitows, VILLIAM lG. BuowN. 

